DEREK LIBBY, DO appears in the CMS NPPES registry as a Neuromusculoskeletal Medicine & OMM Physician provider holding DO credentials at 97A EXCHANGE ST, PORTLAND, ME, 04101, with a listed phone of (207) 773-3335. NPI 1184815730 was issued on 08/08/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LIBBY most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 501 prescription claims written by this provider, covering 69 Medicare beneficiaries and totaling roughly $59K in drug spend, split 41% brand-name and 59% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Neuromusculoskeletal Medicine & OMM Physician is a narrow specialty nationwide, with 1,235 enrolled providers across 51 states and an average of 1,107 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.